Trac configuration is done by editing the trac.ini config file, located in <projectenv>/conf/trac.ini.

Global Configuration

Since version 0.9, Trac can also read the configuration from a global trac.ini file. These global options will then be merged with the environment-specific options, where local options override global options.

The global configuration is by default located in $prefix/share/trac/conf/trac.ini. It can be moved to a different location (for example, /etc/trac.ini), but that requires changing the file trac/siteconfig.py which gets created when Trac is installed.

Reference

This is a brief reference of available configuration options.

Note: since [milestone:0.10], the TracIni reference is auto-generated
from the source code, using the TracIniMacro?. But in this page, we will keep
the old wiki content, so that documentation fixes could be easily
contributed by the community, as before.

[trac]

base_url

Base URL of the Trac deployment.In most configurations, Trac will automatically reconstruct the URL that is used to access it automatically. However, in more complex setups, usually involving running Trac behind a HTTP proxy, you may need to use this option to force Trac to use the correct URL.

Charset used in text files in the subversion repository (default is iso-8859-15)

default_handler

Name of the component that handles requests to the base URL (default is WikiModule. Some other options are TimelineModule, RoadmapModule, BrowserModule, QueryModule, ReportModule and NewticketModule) (since 0.9)

[attachment]

max_size

Maximum allowed file size for ticket and wiki attachments

render_unsafe_content

Whether non-binary attachments should be rendered in the browser, or only made downloadable. Pretty much any text file may be interpreted as HTML by the browser, which allows a malicious user to attach a file containing cross-site scripting attacks. For public sites where anonymous users can create attachments, it is recommended to leave this option off (which is the default).

[notification]

smtp_enabled

Enable SMTP (email) notification (true, false)

smtp_server

SMTP server hostname to use for email notifications (default: localhost)

smtp_port

SMTP server port to use for email notifications (default: 25)

smtp_user

Username for SMTP server (since 0.9)

smtp_password

Password for SMTP server (since 0.9)

smtp_from

Sender address to use in notification emails

smtp_replyto

Reply-To address to use in notification emails

smtp_default_domain

Append the specified domain to addresses that do not contain one (since 0.10)

[browser]

[wiki]

[components]

(since 0.9)

This section is used to enable or disable components provided by plugins, as well as by Trac itself. The component to enable/disable is specified via the name of the option. Whether its enabled is determined by the option value; setting the value to enabled or on will enable the component, any other value (typically disabled or off) will disable the component.

The option name is either the fully qualified name of the components or the module/package prefix of the component. The former enables/disables a specific component, while the latter enables/disables any component in the specified package/module.

The first option tells Trac to disable the report module. The second option instructs Trac to enable all components in the webadmin package. Note that the trailing wildcard is required for module/package matching. To get a list of active components for your installation, see the Plugins page on About Trac (requires CONFIG_VIEWpermissions.)